Heres a good artical about all the motors that will be available on the B6 Passat and the separation of technologies from Audi, so it can share more parts with the Mk-V Golf platform.

Check out the new 2.5L I5 20V TDI-PD that is replacing the V6 TDI. 185hp and 332 ft lbs torque I hope we get that motor it would be quick and get 32 mpg. Plus just chip is going to take it to 200+ hp and around 400 ft lbs and you will still get 32 mpg